1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef __GFS2_ONDISK_DOT_H__ 7 #define __GFS2_ONDISK_DOT_H__ 8 #include <linux/types.h> 9 #define GFS2_MAGIC 0x01161970 10 #define GFS2_BASIC_BLOCK 512 11 #define GFS2_BASIC_BLOCK_SHIFT 9 12 #define GFS2_MOUNT_LOCK 0 13 #define GFS2_LIVE_LOCK 1 14 #define GFS2_FREEZE_LOCK 2 15 #define GFS2_RENAME_LOCK 3 16 #define GFS2_CONTROL_LOCK 4 17 #define GFS2_MOUNTED_LOCK 5 18 #define GFS2_FORMAT_NONE 0 19 #define GFS2_FORMAT_SB 100 20 #define GFS2_FORMAT_RG 200 21 #define GFS2_FORMAT_RB 300 22 #define GFS2_FORMAT_DI 400 23 #define GFS2_FORMAT_IN 500 24 #define GFS2_FORMAT_LF 600 25 #define GFS2_FORMAT_JD 700 26 #define GFS2_FORMAT_LH 800 27 #define GFS2_FORMAT_LD 900 28 #define GFS2_FORMAT_LB 1000 29 #define GFS2_FORMAT_EA 1600 30 #define GFS2_FORMAT_ED 1700 31 #define GFS2_FORMAT_QC 1400 32 #define GFS2_FORMAT_RI 1100 33 #define GFS2_FORMAT_DE 1200 34 #define GFS2_FORMAT_QU 1500 35 #define GFS2_FORMAT_FS 1801 36 #define GFS2_FORMAT_MULTI 1900 37 struct gfs2_inum { 38 __be64 no_formal_ino; 39 __be64 no_addr; 40 }; 41 #define GFS2_METATYPE_NONE 0 42 #define GFS2_METATYPE_SB 1 43 #define GFS2_METATYPE_RG 2 44 #define GFS2_METATYPE_RB 3 45 #define GFS2_METATYPE_DI 4 46 #define GFS2_METATYPE_IN 5 47 #define GFS2_METATYPE_LF 6 48 #define GFS2_METATYPE_JD 7 49 #define GFS2_METATYPE_LH 8 50 #define GFS2_METATYPE_LD 9 51 #define GFS2_METATYPE_LB 12 52 #define GFS2_METATYPE_EA 10 53 #define GFS2_METATYPE_ED 11 54 #define GFS2_METATYPE_QC 14 55 struct gfs2_meta_header { 56 __be32 mh_magic; 57 __be32 mh_type; 58 __be64 __pad0; 59 __be32 mh_format; 60 61 union { 62 __be32 mh_jid; 63 __be32 __pad1; 64 }; 65 }; 66 #define GFS2_SB_ADDR 128 67 #define GFS2_SB_LOCK 0 68 #define GFS2_LOCKNAME_LEN 64 69 struct gfs2_sb { 70 struct gfs2_meta_header sb_header; 71 __be32 sb_fs_format; 72 __be32 sb_multihost_format; 73 __u32 __pad0; 74 __be32 sb_bsize; 75 __be32 sb_bsize_shift; 76 __u32 __pad1; 77 struct gfs2_inum sb_master_dir; 78 struct gfs2_inum __pad2; 79 struct gfs2_inum sb_root_dir; 80 char sb_lockproto[GFS2_LOCKNAME_LEN]; 81 char sb_locktable[GFS2_LOCKNAME_LEN]; 82 struct gfs2_inum __pad3; 83 struct gfs2_inum __pad4; 84 #define GFS2_HAS_UUID 1 85 __u8 sb_uuid[16]; 86 }; 87 struct gfs2_rindex { 88 __be64 ri_addr; 89 __be32 ri_length; 90 __u32 __pad; 91 __be64 ri_data0; 92 __be32 ri_data; 93 __be32 ri_bitbytes; 94 __u8 ri_reserved[64]; 95 }; 96 #define GFS2_NBBY 4 97 #define GFS2_BIT_SIZE 2 98 #define GFS2_BIT_MASK 0x00000003 99 #define GFS2_BLKST_FREE 0 100 #define GFS2_BLKST_USED 1 101 #define GFS2_BLKST_UNLINKED 2 102 #define GFS2_BLKST_DINODE 3 103 #define GFS2_RGF_JOURNAL 0x00000001 104 #define GFS2_RGF_METAONLY 0x00000002 105 #define GFS2_RGF_DATAONLY 0x00000004 106 #define GFS2_RGF_NOALLOC 0x00000008 107 #define GFS2_RGF_TRIMMED 0x00000010 108 struct gfs2_rgrp_lvb { 109 __be32 rl_magic; 110 __be32 rl_flags; 111 __be32 rl_free; 112 __be32 rl_dinodes; 113 __be64 rl_igeneration; 114 __be32 rl_unlinked; 115 __be32 __pad; 116 }; 117 struct gfs2_rgrp { 118 struct gfs2_meta_header rg_header; 119 __be32 rg_flags; 120 __be32 rg_free; 121 __be32 rg_dinodes; 122 union { 123 __be32 __pad; 124 __be32 rg_skip; 125 }; 126 __be64 rg_igeneration; 127 128 __be64 rg_data0; 129 __be32 rg_data; 130 __be32 rg_bitbytes; 131 __be32 rg_crc; 132 __u8 rg_reserved[60]; 133 }; 134 struct gfs2_quota { 135 __be64 qu_limit; 136 __be64 qu_warn; 137 __be64 qu_value; 138 __u8 qu_reserved[64]; 139 }; 140 #define GFS2_MAX_META_HEIGHT 10 141 #define GFS2_DIR_MAX_DEPTH 17 142 #define DT2IF(dt) (((dt) << 12) & S_IFMT) 143 #define IF2DT(sif) (((sif) & S_IFMT) >> 12) 144 enum { 145 gfs2fl_Jdata = 0, 146 gfs2fl_ExHash = 1, 147 gfs2fl_Unused = 2, 148 gfs2fl_EaIndirect = 3, 149 gfs2fl_Directio = 4, 150 gfs2fl_Immutable = 5, 151 gfs2fl_AppendOnly = 6, 152 gfs2fl_NoAtime = 7, 153 gfs2fl_Sync = 8, 154 gfs2fl_System = 9, 155 gfs2fl_TopLevel = 10, 156 gfs2fl_TruncInProg = 29, 157 gfs2fl_InheritDirectio = 30, 158 gfs2fl_InheritJdata = 31, 159 }; 160 #define GFS2_DIF_JDATA 0x00000001 161 #define GFS2_DIF_EXHASH 0x00000002 162 #define GFS2_DIF_UNUSED 0x00000004 163 #define GFS2_DIF_EA_INDIRECT 0x00000008 164 #define GFS2_DIF_DIRECTIO 0x00000010 165 #define GFS2_DIF_IMMUTABLE 0x00000020 166 #define GFS2_DIF_APPENDONLY 0x00000040 167 #define GFS2_DIF_NOATIME 0x00000080 168 #define GFS2_DIF_SYNC 0x00000100 169 #define GFS2_DIF_SYSTEM 0x00000200 170 #define GFS2_DIF_TOPDIR 0x00000400 171 #define GFS2_DIF_TRUNC_IN_PROG 0x20000000 172 #define GFS2_DIF_INHERIT_DIRECTIO 0x40000000 173 #define GFS2_DIF_INHERIT_JDATA 0x80000000 174 struct gfs2_dinode { 175 struct gfs2_meta_header di_header; 176 struct gfs2_inum di_num; 177 __be32 di_mode; 178 __be32 di_uid; 179 __be32 di_gid; 180 __be32 di_nlink; 181 __be64 di_size; 182 __be64 di_blocks; 183 __be64 di_atime; 184 __be64 di_mtime; 185 __be64 di_ctime; 186 __be32 di_major; 187 __be32 di_minor; 188 189 __be64 di_goal_meta; 190 __be64 di_goal_data; 191 __be64 di_generation; 192 __be32 di_flags; 193 __be32 di_payload_format; 194 __u16 __pad1; 195 __be16 di_height; 196 __u32 __pad2; 197 198 __u16 __pad3; 199 __be16 di_depth; 200 __be32 di_entries; 201 struct gfs2_inum __pad4; 202 __be64 di_eattr; 203 __be32 di_atime_nsec; 204 __be32 di_mtime_nsec; 205 __be32 di_ctime_nsec; 206 __u8 di_reserved[44]; 207 }; 208 #define GFS2_FNAMESIZE 255 209 #define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7) 210 #define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1)) 211 struct gfs2_dirent { 212 struct gfs2_inum de_inum; 213 __be32 de_hash; 214 __be16 de_rec_len; 215 __be16 de_name_len; 216 __be16 de_type; 217 __be16 de_rahead; 218 union { 219 __u8 __pad[12]; 220 struct { 221 __u32 de_cookie; 222 __u8 pad3[8]; 223 }; 224 }; 225 }; 226 struct gfs2_leaf { 227 struct gfs2_meta_header lf_header; 228 __be16 lf_depth; 229 __be16 lf_entries; 230 __be32 lf_dirent_format; 231 __be64 lf_next; 232 union { 233 __u8 lf_reserved[64]; 234 struct { 235 __be64 lf_inode; 236 __be32 lf_dist; 237 __be32 lf_nsec; 238 __be64 lf_sec; 239 __u8 lf_reserved2[40]; 240 }; 241 }; 242 }; 243 #define GFS2_EA_MAX_NAME_LEN 255 244 #define GFS2_EA_MAX_DATA_LEN 65536 245 #define GFS2_EATYPE_UNUSED 0 246 #define GFS2_EATYPE_USR 1 247 #define GFS2_EATYPE_SYS 2 248 #define GFS2_EATYPE_SECURITY 3 249 #define GFS2_EATYPE_LAST 3 250 #define GFS2_EATYPE_VALID(x) ((x) <= GFS2_EATYPE_LAST) 251 #define GFS2_EAFLAG_LAST 0x01 252 struct gfs2_ea_header { 253 __be32 ea_rec_len; 254 __be32 ea_data_len; 255 __u8 ea_name_len; 256 __u8 ea_type; 257 __u8 ea_flags; 258 __u8 ea_num_ptrs; 259 __u32 __pad; 260 }; 261 #define GFS2_LOG_HEAD_UNMOUNT 0x00000001 262 #define GFS2_LOG_HEAD_FLUSH_NORMAL 0x00000002 263 #define GFS2_LOG_HEAD_FLUSH_SYNC 0x00000004 264 #define GFS2_LOG_HEAD_FLUSH_SHUTDOWN 0x00000008 265 #define GFS2_LOG_HEAD_FLUSH_FREEZE 0x00000010 266 #define GFS2_LOG_HEAD_RECOVERY 0x00000020 267 #define GFS2_LOG_HEAD_USERSPACE 0x80000000 268 #define GFS2_LFC_SHUTDOWN 0x00000100 269 #define GFS2_LFC_JDATA_WPAGES 0x00000200 270 #define GFS2_LFC_SET_FLAGS 0x00000400 271 #define GFS2_LFC_AIL_EMPTY_GL 0x00000800 272 #define GFS2_LFC_AIL_FLUSH 0x00001000 273 #define GFS2_LFC_RGRP_GO_SYNC 0x00002000 274 #define GFS2_LFC_INODE_GO_SYNC 0x00004000 275 #define GFS2_LFC_INODE_GO_INVAL 0x00008000 276 #define GFS2_LFC_FREEZE_GO_SYNC 0x00010000 277 #define GFS2_LFC_KILL_SB 0x00020000 278 #define GFS2_LFC_DO_SYNC 0x00040000 279 #define GFS2_LFC_INPLACE_RESERVE 0x00080000 280 #define GFS2_LFC_WRITE_INODE 0x00100000 281 #define GFS2_LFC_MAKE_FS_RO 0x00200000 282 #define GFS2_LFC_SYNC_FS 0x00400000 283 #define GFS2_LFC_EVICT_INODE 0x00800000 284 #define GFS2_LFC_TRANS_END 0x01000000 285 #define GFS2_LFC_LOGD_JFLUSH_REQD 0x02000000 286 #define GFS2_LFC_LOGD_AIL_FLUSH_REQD 0x04000000 287 #define LH_V1_SIZE (offsetofend(struct gfs2_log_header, lh_hash)) 288 struct gfs2_log_header { 289 struct gfs2_meta_header lh_header; 290 __be64 lh_sequence; 291 __be32 lh_flags; 292 __be32 lh_tail; 293 __be32 lh_blkno; 294 __be32 lh_hash; 295 296 __be32 lh_crc; 297 __be32 lh_nsec; 298 __be64 lh_sec; 299 __be64 lh_addr; 300 __be64 lh_jinode; 301 __be64 lh_statfs_addr; 302 __be64 lh_quota_addr; 303 304 __be64 lh_local_total; 305 __be64 lh_local_free; 306 __be64 lh_local_dinodes; 307 }; 308 #define GFS2_LOG_DESC_METADATA 300 309 #define GFS2_LOG_DESC_REVOKE 301 310 #define GFS2_LOG_DESC_JDATA 302 311 struct gfs2_log_descriptor { 312 struct gfs2_meta_header ld_header; 313 __be32 ld_type; 314 __be32 ld_length; 315 __be32 ld_data1; 316 __be32 ld_data2; 317 __u8 ld_reserved[32]; 318 }; 319 #define GFS2_INUM_QUANTUM 1048576 320 struct gfs2_inum_range { 321 __be64 ir_start; 322 __be64 ir_length; 323 }; 324 struct gfs2_statfs_change { 325 __be64 sc_total; 326 __be64 sc_free; 327 __be64 sc_dinodes; 328 }; 329 #define GFS2_QCF_USER 0x00000001 330 struct gfs2_quota_change { 331 __be64 qc_change; 332 __be32 qc_flags; 333 __be32 qc_id; 334 }; 335 struct gfs2_quota_lvb { 336 __be32 qb_magic; 337 __u32 __pad; 338 __be64 qb_limit; 339 __be64 qb_warn; 340 __be64 qb_value; 341 }; 342 #endif 343